/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at

 * http://www.apache.org/licenses/LICENSE-2.0

 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.ahp.registration.dao;

import java.util.List;

import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import javax.persistence.PersistenceContextType;
import javax.persistence.Query;

import org.ahp.core.pojo.User;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * @author Anita Onnuvel
 * 
 * @spring.bean id="registrationDao"
 * 
 */
public class RegistrationDaoImpl implements IRegistrationDao {

    final static Logger LOGGER = LoggerFactory.getLogger( RegistrationDaoImpl.class );

    @PersistenceContext( type = PersistenceContextType.TRANSACTION )
    private EntityManager mEntityManager;
    
    /* (non-Javadoc)
     * @see org.ahp.registration.dao.IRegistrationDao#registerUser(org.ahp.core.pojo.User)
     */
    @Override
    public void createUser( User pUser ) {
        pUser.getAudit().setCreatedBy( new Long( -1 ) );
        pUser.getAudit().setLastUpdatedBy( new Long( -1 ) );
        mEntityManager.persist( pUser );        
    }

    /* (non-Javadoc)
     * @see org.ahp.registration.dao.IRegistrationDao#doesUserExist(org.ahp.core.pojo.User)
     */
    @Override
    public boolean doesUserExist( User pUser ) {
        Query lNamedQUery = mEntityManager.createNamedQuery( "doesUserExist" );
        lNamedQUery.setMaxResults( 1 );
        lNamedQUery.setParameter( "registrationName", pUser.getLoginName() );
        List lResultList = lNamedQUery.getResultList();  
        if ( lResultList != null && !lResultList.isEmpty() )
            return true;
        return false;
    }

}
